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61.
Bao WANG Penghang YIN Andrea Louise BERTOZZI P. Jeffrey BRANTINGHAM Stanley Joel OSHER Jack XIN 《数学年刊B辑(英文版)》2019,40(6):949-966
Real-time crime forecasting is important. However, accurate
prediction of when and where the next crime will happen is
difficult. No known physical model provides a reasonable
approximation to such a complex system. Historical crime data are
sparse in both space and time and the signal of interests is weak.
In this work, the authors first present a proper representation of
crime data. The authors then adapt the spatial temporal residual
network on the well represented data to predict the distribution of
crime in Los Angeles at the scale of hours in neighborhood-sized
parcels. These experiments as well as comparisons with several
existing approaches to prediction demonstrate the superiority of the
proposed model in terms of accuracy. Finally, the authors present a
ternarization technique to address the resource consumption issue
for its deployment in real world. This work is an extension of our
short conference proceeding paper [Wang, B., Zhang, D., Zhang, D.
H., et al., Deep learning for real time Crime forecasting, 2017,
arXiv: 1707.03340]. 相似文献
62.
The synthesis of 2, 7-dioxa-isotwistane ( 10 ), 2, 7-dioxa-twistane ( 17 ), and 2, 8-dioxa-homotwistbrendane ( 36 ) and several of their derivatives is described starting from endo-2-hydroxy-9-oxabicyclo[3.3.1]non-6-ene ( 1 ). The 10O(7)-isotwistane iodide 7 and the corresponding tosylate 15 as well as the 10O(2)-iodide 9 were treated under reaction conditions suitable for molecular rearrangements involving oxonium ions g and i , respectively, by neighbouring group participation leading to 2, 7-dioxa-twistanes and 2, 8-dioxa-homotwistbrendanes, respectively. 相似文献
63.
W. Wagner R. Rosenbusch E. Bergell C. Stiepel C. Bunge E. Louise E. Sauvage Marange und E. Philippot 《Fresenius' Journal of Analytical Chemistry》1932,87(7-8):309-311
Ohne Zusammenfassung 相似文献
64.
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67.
V. L. Rvachev A. N. Shevchenko T. I. Sheiko J. Wicker V. Shapiro 《Journal of Mathematical Sciences》1998,88(3):374-379
We present a computational model of the process of solidification of metal in molds of complicated configuration. The model
is based on the theory of R-functions, which makes it possible to construct the normal equations of drawings and introduce
additional parameters into these equations, by means of which one can assure the required behavior of the solution corresponding
to the technological implementation of the process. Computational experiments were carried out using thePOLE system.
Translated fromMatematichni Metodi i Fiziko-mekhanichni Polya, Vol. 40, No. 1, 1997, pp. 59–65. 相似文献
68.
Laurence S. Rothman Louise D.G. Young 《Journal of Quantitative Spectroscopy & Radiative Transfer》1981,25(6):505-524
Energy levels and rotational constants are provided for all carbon dioxide infrared absorption transitions of significance for terrestrial atmospheric transmission. Constants have been recalculated using new FTS measurements in the 4.3 μm region at elevated temperature, new FTS measurements in the 15, 5, and 2 μm regions, precise laser measurements around 10 μm, and high resolution grating spectrometer measurements of isotopically enriched samples. Band centers, band strengths, and coriolis coupling constants are given for some 560 bands. 相似文献
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70.